Yesterday, I was screwing around with the R4i Ultra that I bought. Converted it to an Acekard 2i and it actually allowed me to use AKAIO v1.9.0 without giving me a clone warning.
@Xdqwerty, Flashcart conversions work similarly to arcade board conversions. To put it into perspective, a 'conversion' is where you take an arcade board and swap the ROMs for another game that works with the same hardware without having to fork out for another board. The same ideology applies to flashcarts too.